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B. L. LAMBERT:

BUTTON. No. 374,258. Patented Dec. 6, 1887.

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WITNESSES:

INVENTOR QQMWAW I I BY ina/14 /3 7" & ATTORNEY and combinations ofparts, substantially as UNITED STATES EMIL LOUIS LAMBERT,

PATENT OFFICE,

OF NEW YORK, N. Y.

BUTTON.

SPECIFICATION forming part of Letters Patent No. 374,258, dated December6, 1887.

Application filed October 10, 1887. Serial No. 151,073. (No model.)

1'0 all whom it may concern:

Be it known that I, EMIL LoUIs LAMBERT, a citizen of the United States,and a resident of New York city, in the county of New York and State ofNew York, have invented certain new and useful Improvements in Buttons,of which the following is a specification.

This invention relates to that class of metallic buttons adaptedespecially to be used upon mens pants and in other situations Wherestrength is required, the object being to reduce the cost of saidbuttons, to increase the power to resist draft thereupon, to prevent therotation of the crossbar, and not to distress the metal of the centerdisk by depressing part of it for the purpose of keeping the crossbar inplace, and also to keep such cross-bar in the center of the perforationsof the button.

The invention consists in the arrangements will be hereinafter setforth, and finally embodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts in each of the several figures,Figure 1 is a plan View and side elevation of my improved button. Fig. 2is a plan and sectional view of the upper plate. Fig. 3 is aplan andsectional view of the center disk having crossbar attached. Fig. 4 is aplan and sectional view of the lower plate. Fig. 5 is a sectional viewof my complete button, Fig. 1. Fig. 6 is a plan view of the center disk,and also a View of the bar a. Fig. 7 is a modification of the bar as itmay be. Fig. 8 is a modification of the center disk as it may be.

In carrying out the invention I form upper and lower plates, at b, whichare pressed together in the usual way, said plates being each providedwith-an unobstructed central perforation. Between said plates is rigidlyclamped a center disk, 0, (shown in Figs. 3, 5, and 6,) having also anunobstructed central perforation, but provided with holes or slits d d,into which the hooks e e of the cross-bar a are placed, which holes orslits hold the cross-bar across the central perforation. Said crossbaris composed of wire of adequate strength, and is cut into lengthssufficient to engage and hook into the opposite holes or slits d d,crossing the central opening of the plates and disk and enabling thebutton to be sewed upon the cloth. The holes are so cut that thecrossbar will be in the center of the button.

I do not wish to be understood as limiting myself to any form or size ofthe center disk, inasmuch as the same may be angular, substalr tially asshown in Fig. 8, with its peripheral portion in engagement with the edgeof the under plate, (see Fig. 5;) or said peripheral portion may lieinside of said edge. In the latterniethod I prefer to make the cross-barso as to allow its center to be bent downward, (see Fig. 7,) which willserve the united purposes of keeping the thread in the center of the barand making the thread less easily visible, and also hold the crossbar ofthe center disk to a certain extent against the lower part of the lowerplate, thus preventing the center disk from revolving, such revolutionstending to break the thread. The lower plate may therefore in thismethod be so pressed against the bottom curve of the cross-bar as tokeep the center disk from revolving. In the first-mentioned method thisis not necessary, because the center disk is held in place at itsperiphery by the edge of the lower plate, as aforesaid, and thefirst-mentioned method is much more preferable, because the center diskis thus rigidly held.

The holes or slits, being cut out of the center disk itself, do notdistress or displace the metal, as a depression or recess made out ofsaid disk would and can be cut at the same time that the disk is cut,and the ends 6 e of the hooks of the bar can, if desired, be doubledover and pressed down flat upon the center disk at the same time thatthe upper and lower plates are pressed together; or such ends may bethus flattened out or spread, by filing or otherwise, over the holes tokeep the bar in place. A mere depression by distressing and displacingthe metal also cannot stand as great a strain,-but the making of such adepression weakens the metal and'renders it brittle. The fact of havinga thin disk in the center allows the clamping of its periphery, and doesnot make the edge or periphery of thebutton too thick, which isundesirable, because if too thick a button'hole could not slip over itso easily.

I am aware of Patent No. 308,124 to Cooper ICO for buttons, and do notclaim what is therein claimed, as the making of the recesses thereinshown produces some of the very disadvantages I mention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A button composed of the upper and lower plates, a center disk havingholes (1 d cut or slit out of the center disk itself, and a crossbarhooked in said holes, all substantially as herein set forth and shown.

2. In combination, the upper and lower plates having unobstructedcentral openings,

the center disk having a central opening, and 15 having holes cut orslit out of the center disk itself, said center disk being rigidlyclamped between said outer plates, and a wire crossbar crossing saidopenings and secured in said holes or slits, all substantially as hereinset 20 forth and shown.

Signed at New York city, in the county of New York and State of NewYork, this 8th day of October, A. D. 1887.

EMIL LOUIS LAMBERT.

Witnesses:

ISAIAH H. HANNA, JAMES R. HENRY.

